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Garbage Collection Analysis of PCGen

Introduction I decided to combine two software loves of mine and perform some analysis on PCGen, a popular Java based open source character generator for role-playing games. I used ...
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How many threads do I need?

It depends on your application. But for those who wish to have some insight about how to squeeze out most from all those expensive cores you have purchased for your production site ...
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QOTD: Java Thread vs. Java Heap Space

The following question is quite common and is related to OutOfMemoryError: unable to create new native thread problems during the JVM thread creation process and the JVM thread capacity. ...
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@Cacheable overhead in Spring

Spring 3.1 introduced great caching abstraction layer. Finally we can abandon all home-grown aspects, decorators and code polluting our business logic related to caching.                   Since ...
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The Importance of Packages

I remember approximately 15 years ago when I started learning Java. I read a lot about this ‘package’ thing and ‘namespaces’ and I totally didn’t get it. Sad thing is: While ...
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Gradle – A Maven perspective

As reader’s of my blog would know I am a bit of a Maven fanboy. I had started using Maven around 2007-8 and have never looked back. However, as is the case with everything else ...
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Java heap space, native heap and memory problems

Recently, I was discussing with a friend, why the Java process uses more memory than the maximum heap that we set when starting the java process. All java objects that code creates ...
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Integrating Bean Validation with JAX-RS in Java EE 6

JavaBeans Validation (Bean Validation) is a new validation model available as part of Java EE 6 platform. The Bean Validation model is supported by constraints in the form of annotations ...
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Selecting Your Java EE 6 Application Server

The number one question I get asked is: ‘Which Java EE Application server should we use?’. With the growing adoption of Java EE 6 new compatible application server get certified. The ...
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Spring MVC – Customizing RequestMappingHandlerMapping

When Spring MVC is configured using <mvc:annotation-driven/> in an xml bean definition file, internally a component called RequestMappingHandlerMapping gets registered with Spring ...
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